Climate Change Disrupts Cantillon

In late October, the Cantillon brewery in Brussels allows its spontaneously fermenting sour lambic beers to cool in the open. This year, however, unusually warm temperatures have forced the brewery to pour away three batches of beer and to temporarily halt production until cooler weather arrives.

Ideally, lambic should cool at between between 26 and 46 degrees Fahrenheit. However, nighttime temperatures in Brussels stayed in the 50s, was much too warm for the beer.

Jean Van Roy, who heads the century-plus-old family business, said that his grandfather used to brew from mid-October until May. In the last 20 years, however, Van Roy has seen the brewing season steadily shrink. Last year, his staff didn’t start brewing until November 10.

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